George otis deafer



Inn 471224" $90): @O. Dr 7 Patented Sept. 16, 1890.

iii??? 35? l.

(No Model.)

G. ONDRAPER. SUPPORT FOR SPINNING SPINDLES.

UNITED STATES PATENT OFFICE.

GEORGE OTIS DRAPER, OF I-IOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPER do SONS, OF SAME PLACE.

SUPPORT FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Tatent No. 436,754, dated September 16, 1890..

Application filed February 11, 1890- Serial No. 340,003. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE OTIS DRAPER, of Hopedale, county of WVorcester, State of Massachusetts, have invented an Improvement in Support-s for Spinning=Spindles, of which the following description, in connection with the accompanying drawings, is a specification, like letters 011 the drawings representing like parts.

In my aim to improve the construction of spindle-supports to reduce them to the fewest possible parts I have discovered that springs and packings may be done away with and a good and eflicient spindle-bearing be produced by the employment of a swiveled bolster supported at its lower end below the whirl on a shoulder of the supporting-case, the bolster having externally between its ends a ball-like projection or swell which contacts with the cylindrical interior of the support in the plane of the band-pull, the lower end of the spindle resting and being free to wander on the top of a step or surface in the bottom of a hole in the supportingcase, the said surface upon which the foot of the spindle rests being concaved in such manner that the foot of the spindle may Wander up the sides of the concavity, and so that during such wandering theweight of the spindle and its load will act to restrain too free lateral movement of the foot of the spindle.

Figure I in elevation and section shows a spindle and support embodying my invention, and Fig. 2 a modified form of step which may be used.

The rail to receives the shank of the supporting-case b, shown as provided with an interior shoulder c. The hole in the supporting-case 'receives at its bottom a step plate or block d, the top of which is concaved to'receive the foot of the spindle, the shape of the concavity being such as to enable the foot of the spindle to Wander and, in moving from the center of the step toward its side,

to rise slightly, thus causing the weight of the spindle and its load to act as a check to p the too free lateral movement of the foot.

I disclaim the use of a step having a hole or socket into which the foot of the spindle enters and in which the spindle near its point takes a lateral bearing.

The bolster it rests at its lower end 011 the shouldcr'c, and has an annular rim or pro= jection m, which contacts with the interior of the supporting-case substantially in the plane of the band pull, so that the bolster swivels freely about a point substantially in the plane of the band-pull. The described swiveling bolster enables the foot of the spin= dle to wander on the step to accommodate itself for any inequalities of load, and yet run without jar or injurious gyration.

I also disclaim a swiveling bolster.

The bolster shown as free to tip about a point in the plane of the band-pull is extended a considerable distance above and below the said line of band-pull; but the lateral movement of the foot of the spindle is only restrained by the friction on the top of the step, the shape of which is such as to make it necessary for the spindle with its load to be lifted whenever its foot moves laterally. This small restraint is beneficial in tending to keep the spindle properly centered.

I am aware that it is not new to employ a swiveled bolster; but prior to my invention I am not aware that a swiveled bolster has been supported upon a shoulder below the whirl, thus avoiding the making of a seat in the bolster-case to receive the ball-like annular projection of the bolster. In the construction herein contemplatedthe supporting-case has only to be bored and the bolster is dropped loosely into it.

By locating the shoulder of the supportingcase on which the swiveled bolster rests above the step-bearing and between it and the lower end of the whirl the movement of the lower end of the bolster may be less than were the lower end of the bolster extended down to the step, and yet permit the bolster to swivel and adapt itself to the requirementsof the spindle.

I claim-- r 1. The spindle-step, the supporting-case to contain the said step, and provided with a shoulder below the whirl but above said step, combined with a spindle and with a bolster located in said case and swiveled substantially in the plane of the band-pull, substantially as described.

2. The sleeve-whirl spindle, the shouldered supporting-case, and a step therein provided at its upper side with a concavity up the sides of which the lower end of the spindle may wander, combined with a bolster swiveled substantially in the plane of the band-pull,

the weight of the bolster being supported on I the shoulder of the supporting-case below the whirl to operate substantially as described.

In testimony whereof I have signed my name to this specification in the presence of IO two subscribing witnesses.

GEO. OTIS DRAPER.

Witnesses:

E. D. BANCROFT, H. F. SEARLEs. 

